Printing apparatus.



G. G. BAIN.

PRINTING APPARATUS.

APPLICATION r1? ED T15R18, 1910.

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" AYTOHNEY WITNESSES:

G. G. BAIN.

PRINTING APPARATUS. APPLICATION rum) FEB. 19, 1910.

Patented Dec. 26, 1911 3 SHEETS-SHEET 2.

MC ATTORNEY G. G. BAIN".

PRINTING APPARATUS.

APPLICATION FI LED FEB. 18, 1910. I 1,012,585. Patented Dec. 26, 1911.

3 SEEETS-SHEET 8.

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WITNESS/1 8 44 Q9 axe-2s UNITED STATES PATENT OFFICE.

4 GEORGE GRANTHAM "BAIN, or NEW YORK, N. Y.

PRINTING APPARATUS.

To aZLwhom it mayconccrn:

Be it known'that I, GEORGE GRANTHA'M Barn, a citizen of the United States, residing at No. Union Square east, in the city, scounty, and State of New York, have invented new and useful Improvements in flrinting Apparatus, of which the following is a specification.

This invention relates to printing appal0 ratus,--and more especially to apparatus of .-this-chjaracter adapted foruse in the print- ..ing of photographs.

. ..-..,One of the objects of the invention is to ;provide an apparatus of this character 15.,whichwillbe inexpensiveand simple in it's construction.v 1 I i Another object is to provide a device of gt his character which may-be operated by un- (skilled persons, and which; --is.largely autog matic in its operation. I

, Other ohjects will be in part obvious and.

in part pointed out hereinafter.

In the accompz'znying drawing showing an illustrative embodiment of this invention, 2 5 fiind in which the samelreference numeral re-- 'jfers to similar parts in the severai.figures;.

'Figure 1 is a perspec'tiveview of the apparatus with the parts in the position they occupy during the printing process. F i 2 is '-f0 "a plan view thereof, parts being broken awa for the sake of clearne's's. Fig. 3 is a i ertical longitudinal section of the device with the parts shown in the position they occupy during the printing process. Fig. 4

is a sectional view of a part of the apparatus similar to Fig. 3 showing the position of the parts before or after printing. Fig. 5 is a perspective view of the printing frame. Fig. "dis a detailed perspective view of a part-Oftheback closing means. Fig. '7 is a a diagrammatic "iew illustrating the method ofnviring the electric lights. i zf ln the illustrative embodiment of this invention' shown-in the drawings, 1- indicates :5 zinsuit-able frame-provided w'itlrfr'ont and mi rear compartments 2 and 3, "the itops of which; are open. Arljaeent'tlie upper edge of the compartments at both sides thereof are guideways 4L upon which the printing frame 5 is adapted to Slld0, Whl'-l)y it may as; moved-back and-fo rth to register with the open in got either. compartment. asshown in Rigs; 3- andgt. .Theprint ng- Frame is preterahly provlded-xwlth a -h1ngJd back 6 hav- 5 Specification of Letters Patent.

one ormoresprings 7 secured thereto-to .latented Dec. 26, 1911 Application'filed February 18 1910. 'Serial 2N0. 544,582.

which springs a bar 8 is attached in any suitable manner. The ends of'the bar are preferablynotched, as indicated at 9 in Fig,

5 to receiveprojeeting'portions 10 of arms 11 which are pivotally mounted upon the 0 frame, as clearly shownin Figs. 2,4 and 5;;

In the embodiment shown the armsare'pivj oted tov the side walls of the frame which areshown extending above the rearfcoi'fif partment. The arms .11 may be secured-to; the bar 8 in any suitable manner, aslfor' ex ample, by hooks 12 carried by the anns'-' e,'n'- gaging eyelets 13 in. the bar. A handl is preferably secured to the frame"5 atftli ef front-thereof in order that the operatltirjjm'aj 7'0" readily move the same into registry with one" orthe other compartments for the purpose hereinafl'erdescribed. .1-

V From the foregoing. description, it will beunderstood thatas the printing frame "5 is'i drawn forward into registry with the open ing in the frontcbmpart-ment 2, the pivoted arms 11 which are attached to the bar .8will cause the back 6.01: the frame to' open and-- occupy the position. shown in.Fig.-'4;. In this position the frame is ready to receive;- the negative and the sensitized paper. .A tter these are put in place,-the framewis': pushed toward the rear of the frame,.-sl'id-z ing upon the guideways 4 and the. back 67 ,85,; will be closed through the agency of. .th,e ;1 arms 11 to occupy the position shown ing Fig. 3, the arms 11 being so proportioned ,i that when the frame is in this position there. will be a certain amount of tension upon 9Q. the springs 7, thereby holding: the hack.

firmly closed without, however, running. any

danger of breaking the glass, or otherwise injuring thefrai'nc. A cover 15 is prefer ably provided. against which the back 7 of 9 the frame 5 rests when in its open posif lion and which assists in the closing of the back as the frame is pushed toward thercar of the apparatus. Positioned within the front con'ipartment is a sourceof illumination such as aineli trio light 16 which is adapted to 'ei iiit al'l ight of such a character that it willnotiadectithe sensitized paper. This niaybe accomplished"? l providing a lamp the glassy? ruby colored. This lamp is pretera' p H lighted during the-operation of tliedevice; being-in the present instance'fconiit ectetl liy 1 wires 17 direct to the maiii' '18. Iii-the reai 'f l compartment there 15 positioned one or more wh ch is I, F x i- Q I 1,012,586 w sources of illumination suitable for printing purposes, being preferably incandescent electric lamps 16 as shown. terminals of each of. the lamps is connected as by a wire .19 to'one side of the main 18 and the.ot-her terminals of the lamps are connected to a contact 20, adapted to be electrically connected to a second contact 21 by a circuit closing member 22 secured to the 0 frame 5. The second cont-act 21 is electriwill operate to closethe circuit when the frame registers with the opening in the rear compartment.

In order to vary the intensity of the light, which may be desirable. when printing from different negatives, means are provided for alteringv the positions of.the lamps in the rear compartment with respect to the printing frame 5. In the present instance such ,means are shown as comprising bars or rods slidingl mounted within openings formed in t 1e bottom of the rear compartment and openings formed in suitable cross; bars 25 carried by the frame 1. Each rod supports a'lamp and is rovided with a lurality of holes 26 within which a pin 2 is adapted to enga e which pin rests upon the upper surface 0 its associated cross-bar 25. When it is desired to change the position of the lamp with respect to the rinting frame it is merely necessary to wit draw the pin 27, and lower or raise the rod,24 into the desired position, after which the pin may be inserted in the hole 26 which is positioned immediately above the cross-bar 25.

' 40- The operation'of the device, which should be large y obvious from the above description, is as follows: \Yhen it is desired to make a print, the frame 5 is drawn forward into-registry vwith the opening in the front 46 compartment 2, as shown in Fig. 4, in which" instance, as above described, the back 6 is automatically opened. At this time the lamp 16' in the rear compartment 3 will be extinguished owing to the fact that the cir- 50 cuit is broken as above described. The ruby light 16 in the front compartment 2 is illummated and by meanswpf the same the film and the sensitized paper can readily be placed in position. The frame 5 is then pushed inwardly into registry with the rear compartment 3 the back 6 closing automatically as described the instant the frame reaches such "position the circuit of the lamps 16 within the rear compartment 3 0 will be completed thus causing them to be illuminated. By means I of the automatic lighting of th lamps in the rear compartment the operator knows exactly the instant from which the exposure should be timed.

-5 It is of course understood that the lights are One of the 'what is claim adjusted vertically into the proper positions before the apparatus is used. The printing frame is l.ft in its position the required length of dine necessary to make an exposure, and is then drawn forward. At the instant the frame starts on its forward trip the circuit of the lamps in the rear compartment is broken, thus stopping the exposure immediately. The frame is drawn out into its forward position as shown in Fig. 4: the back is automatically opened, and v exposure can be accurately determmed, in-

asmuch as the exposure does not begin until the frame is inits innermost position, and ends at the instant the operator withdraws the frame. j

Having described this invention in connection with the illustrative embodiment thereof, to the details of which disclosure, the invention not, of course, to ,be limited, as new and what is desired to be secured by Letters Patent is set forth in the appended claims: 1. In apparatus of the class described, in combinatlon, a compartment having an opening, a printing frame adapted to register with said opening, an'electric lamp positioned within said compartment, electrlcal contacts associated with said lamp and a contact maker carried by said frame and adapted to electricallyconnect said contacts to illuminate the lamp when the frame is in registry with said 0 ening.

2. In apparatus 0 the class described, in combination, a plurality of compartments provided with openings, a printing frame adapted to be moved into registry with either one of said 0 enings, said rintin frame being provide with a mova 1e ha and rotatable means operatively associated with said back for automaticallyopenin v said back when the printing frame is move into registry with one of sad openings.

3. In. apparatus of the class descnbed,-.in'

combination, two compartments provided with openings, a source of light 1n one of said compartments, said source "of light" being of such a. character that the light emitted thereby will be free from rays adapted to aflect sensitized paper, a source.

of light adapted to affect sensitized paper positioned in the other of said'compartmcnts, a printing frame adapted to' move into registry with either one of said openings, said printing frame being FI'OVIdBd with a movable back and means or auto.-

- inatically closing said back as said frame is moved into registry with one of said openings.

4. In apparatus of the class described, in combination, two compartments provided with openings, guideways-associated with the openings of said compartments, a source p 'when brought into registry-with the other of light in one of said compartments, said source of'light being of such character that the light emitted thereby will be free from rays adapted to affect sensitized paper, a source of light adapted to affect sensitized paper positioned in the other of said compart-ments', and a printing frame mounted upon said guideways and adapted to be slid thereon intoregistry with either one of v said openings.

5. In apparatus of the class described, in

combination, a plurality of compartments provided with openings, a printing frame adapted to be moved into registry with either one of said openings, said printing frame being provided with a movable back, a source of light in one of said compartments, means for automatically opening the back of the frame when brought into registry with one of said openings and for automatically closing the back of the frame of said openings, and means controlled by the printing -frame for illuminating the source of light when said frame is in registry with the opening of the compartment within whichthe source of light is positioned. i

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE GRANTHAM BAIN. Witnesses:

H. \V. SmRIcHs, R. J. HARRISON. 

